delivery head 杨程高 ; 输送压头 ; 压力差 ; 交付总监
pump delivery head 泵输出水位 ; 泵的输出水头 ; 泵的输出水位
dynamic delivery head 排出动压头
delivery head lift 输送压头
static delivery head 排出静压头
total delivery head [水利] 供水总水头 ; 总送水扬程
Light energy delivery head 发明名称
extruder with side delivery head 直角压出机 ; 直角机头压出机
The bill for the meal is less than $10 a head, a reasonable amount that includes a delivery charge of just $4. Add another $10, and you get your own personal waiter.
一顿饭每人还不到10美元，这项合理的帐目中包括仅仅只收4美元的送货上门的费用，再加10美金，您将拥有您自己的私人服务员。
A few pillows or cushions under her shoulders and head will help to raise her to a semi-sitting position, which can aid delivery.
在她的肩膀和头部放几个枕头或靠垫能够帮助她保持半坐的姿势，这能帮助她生产。
If you are awaiting emergency help and the baby's head hasn't appeared, having the mother lie flat may slow delivery until help arrives.
如果你能来得及等到紧急救助的到来，而宝宝的头还没有出来，让妈妈平躺也许能减缓生产速度直到救护人员赶到。
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